%PDF-
%PDF-
Mini Shell
Mini Shell
Metadata-Version: 2.1
Name: async-lru
Version: 2.0.3
Summary: Simple LRU cache for asyncio
Home-page: https://github.com/aio-libs/async-lru
Maintainer: aiohttp team <team@aiohttp.org>
Maintainer-email: team@aiohttp.org
License: MIT License
Project-URL: Chat: Matrix, https://matrix.to/#/#aio-libs:matrix.org
Project-URL: Chat: Matrix Space, https://matrix.to/#/#aio-libs-space:matrix.org
Project-URL: CI: GitHub Actions, https://github.com/aio-libs/async-lru/actions
Project-URL: GitHub: repo, https://github.com/aio-libs/async-lru
Keywords: asyncio,lru,lru_cache
Classifier: License :: OSI Approved :: MIT License
Classifier: Intended Audience :: Developers
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Development Status :: 5 - Production/Stable
Classifier: Framework :: AsyncIO
Requires-Python: >=3.8
Description-Content-Type: text/x-rst
License-File: LICENSE
Requires-Dist: typing-extensions (>=4.0.0) ; python_version < "3.11"
async_lru
=========
:info: Simple lru cache for asyncio
.. image:: https://travis-ci.com/aio-libs/async_lru.svg?branch=master
:target: https://travis-ci.com/aio-libs/async_lru
.. image:: https://img.shields.io/pypi/v/async_lru.svg
:target: https://pypi.python.org/pypi/async_lru
.. image:: https://codecov.io/gh/aio-libs/async_lru/branch/master/graph/badge.svg
:target: https://codecov.io/gh/aio-libs/async_lru
.. image:: https://img.shields.io/matrix/aio-libs:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat
:target: https://matrix.to/#/%23aio-libs:matrix.org
:alt: Matrix Room — #aio-libs:matrix.org
.. image:: https://img.shields.io/matrix/aio-libs-space:matrix.org?label=Discuss%20on%20Matrix%20at%20%23aio-libs-space%3Amatrix.org&logo=matrix&server_fqdn=matrix.org&style=flat
:target: https://matrix.to/#/%23aio-libs-space:matrix.org
:alt: Matrix Space — #aio-libs-space:matrix.org
Installation
------------
.. code-block:: shell
pip install async_lru
Usage
-----
This package is a port of Python's built-in `functools.lru_cache <https://docs.python.org/3/library/functools.html#functools.lru_cache>`_ function for `asyncio <https://docs.python.org/3/library/asyncio.html>`_. To better handle async behaviour, it also ensures multiple concurrent calls will only result in 1 call to the wrapped function, with all ``await``\s receiving the result of that call when it completes.
.. code-block:: python
import asyncio
import aiohttp
from async_lru import alru_cache
@alru_cache(maxsize=32)
async def get_pep(num):
resource = 'http://www.python.org/dev/peps/pep-%04d/' % num
async with aiohttp.ClientSession() as session:
try:
async with session.get(resource) as s:
return await s.read()
except aiohttp.ClientError:
return 'Not Found'
async def main():
for n in 8, 290, 308, 320, 8, 218, 320, 279, 289, 320, 9991:
pep = await get_pep(n)
print(n, len(pep))
print(get_pep.cache_info())
# CacheInfo(hits=3, misses=8, maxsize=32, currsize=8)
# closing is optional, but highly recommended
await get_pep.cache_close()
asyncio.run(main())
TTL (time-to-live, expiration on timeout) is supported by accepting `ttl` configuration
parameter (off by default):
.. code-block:: python
@alru_cache(ttl=5)
async def func(arg):
return arg * 2
The library supports explicit invalidation for specific function call by
`cache_invalidate()`:
.. code-block:: python
@alru_cache(ttl=5)
async def func(arg1, arg2):
return arg1 + arg2
func.cache_invalidate(1, arg2=2)
The method returns `True` if corresponding arguments set was cached already, `False`
otherwise.
Python 3.8+ is required
Thanks
------
The library was donated by `Ocean S.A. <https://ocean.io/>`_
Thanks to the company for contribution.
Zerion Mini Shell 1.0